/**
 * Copyright (c) 2006, Sun Microsystems, Inc
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following 
 *     disclaimer in the documentation and/or other materials provided 
 *     with the distribution.
 *   * Neither the name of the TimingFramework project nor the names of its
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.jdesktop.animation.timing.examples;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

import org.jdesktop.animation.timing.Animator;
import org.jdesktop.animation.timing.interpolation.DiscreteInterpolator;
import org.jdesktop.animation.timing.interpolation.KeyFrames;
import org.jdesktop.animation.timing.interpolation.KeyTimes;
import org.jdesktop.animation.timing.interpolation.KeyValues;
import org.jdesktop.animation.timing.interpolation.PropertySetter;
import org.jdesktop.animation.timing.triggers.ActionTrigger;

/**
 * This is a simple demonstration of discrete interpolation, where the animation
 * simple switches between several strings to display in the window. A
 * ActionTrigger is used to start the animation based on the user clicking the
 * Go button.
 * 
 * @author Chet
 */
public class DiscreteInterpolation extends JComponent {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	String strings[] = { "Zero", "One", "Two", "Three", "Four", "Five", "Six" };
	private int stringIndex = 0;
	private float segmentSeconds[] = { .5f, 2.0f, 1.0f, .2f, 2.0f, 1.0f };

	/** Creates a new instance of DiscreteInterpolation */
	public DiscreteInterpolation() {
		JFrame f = new JFrame();
		f.setLayout(new BorderLayout());
		f.setSize(500, 500);
		JPanel panel = new JPanel();
		f.add(panel, BorderLayout.NORTH);
		JButton button = new JButton("Go");
		setupAnimation(button);
		panel.add(button);
		f.add(this, BorderLayout.CENTER);
		f.setVisible(true);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	private void setupAnimation(JButton button) {
		// Total up the segment times
		float totalTime = 0.0f;
		for (int i = 0; i < segmentSeconds.length; ++i) {
			totalTime += segmentSeconds[i];
		}

		// Set up KeyTimes according to cumulative proportion of total
		float times[] = new float[strings.length];
		times[0] = 0.0f;
		for (int i = 1; i < times.length; ++i) {
			times[i] = segmentSeconds[i - 1] / totalTime + times[i - 1];
		}
		KeyTimes keyTimes = new KeyTimes(times);

		// keyValues are just progressive index values
		KeyValues<Integer> keyValues = KeyValues.create(0, 1, 2, 3, 4, 5, 6);

		// Create KeyFrames with times, values, and DISCRETE interpolation
		KeyFrames<Integer> keyFrames = new KeyFrames<Integer>(keyValues,
				keyTimes, DiscreteInterpolator.getInstance());

		// Property setter will use stringIndex property of this class
		PropertySetter setter = new PropertySetter(this, "stringIndex",
				keyFrames);

		// Run the timer for totalTime (in ms), with modifier as the
		// TimingTarget
		Animator timer = new Animator((int) (totalTime * 1000), setter);

		// Now set up Trigger to start animation
		ActionTrigger.addTrigger(button, timer);
	}

	public void paintComponent(Graphics g) {
		g.setColor(Color.BLACK);
		g.fillRect(0, 0, getWidth(), getHeight());
		g.setColor(Color.WHITE);
		g.drawString(strings[stringIndex], 100, 100);
	}

	public void setStringIndex(int i) {
		stringIndex = i;
		repaint();
	}

	private static void createAndShowGUI() {
		new DiscreteInterpolation();
	}

	public static void main(String args[]) {
		Runnable doCreateAndShowGUI = new Runnable() {
			public void run() {
				createAndShowGUI();
			}
		};
		SwingUtilities.invokeLater(doCreateAndShowGUI);
	}

}
